Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
319,488 users
Chameleon
Spoof your browser profile. Includes a few privacy enhancing options. A WebExtension port of Random Agent Spoofer.
8,499 users
Browsing Protection by F-Secure
Extension for protecting encrypted browsing with security products by F-Secure.
205,262 users
Stylebot
Change the appearance of the web instantly
10,555 users
scriptsafe-ff
The well known browser extension/addon that gives users control of the web and more secure browsing while emphasizing simplicity and intuitiveness. Since the original developer seemingly has abandoned the project. ... New Repo/Maintainer!
2,165 users
600% Sound Volume
Up to 600% volume boost
151,525 users
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
30,693 users
Facebook Container
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
1,015,738 users
VPN add-on
Anonymous, secure and unrestricted VPN service! Unblock websites and access unlimited content with a free VPN by uVPN
28,976 users
Proxy SwitchyOmega
Manage and switch between multiple proxies quickly & easily.
58,292 users
DownThemAll!
The Mass Downloader for your browser
218,535 users
YouTube Video Download - YouTube HD Download
Download YouTube Videos in HD + SOUND. YouTube Video Download - YouTube HD Download is an amazing YouTube Video Downloader tool for all the download video YouTube fans. Download YouTube video with YouTube Video Download!
86,341 users
Coupert - Automatic Coupon Finder & Cashback
Coupert automatically finds coupons, applies best coupon code at checkout & gives you cashback.
252,107 users
Plasma Integration
Multitask efficiently by controlling browser functions from the Plasma desktop.
69,668 users
Quick Accept-Language Switcher
Provides a quick way of changing the HTTP Accept-Language header so you can view and test websites with a different locale.
2,674 users
Global Speed
Set a default speed for video and audio.
69,677 users
SetupVPN Lifetime Free VPN
Unblock any blocked website in your country, school or company. SetupVPN changes your IP address and location with just single click! It's free and easy to use. Setup your VPN now.
101,610 users
Avast Online Security & Privacy
Secure your Mozilla Firefox browser against real-time online threats, trackers, and scams. We’ll check every site you visit, from Facebook to your bank, so nothing puts you or your data at risk. Join a growing community of 400 million Avast users.
191,091 users
360 Internet Protection
This extension is web threat protection of 360 Total Security for Firefox. It identifies malicious URL in real-time and blocks web threats. The capabilities of anti-fraud, anti-phishing and anti-malicious URL will be enabled once installed.
84,998 users
Cookie-Editor
Cookie-Editor lets you efficiently create, edit and delete a cookie for the current tab. Perfect for developing, quickly testing or even manually managing your cookies for your privacy.
64,273 users
Free Download Manager official extension
Free Download Manager integration with your Firefox browser
90,443 users
BetterTTV
Enhances Twitch and YouTube with new features, emotes, and more.
455,133 users
Phantom
A crypto wallet reimagined for DeFi & NFTs
77,668 users
DeArrow - Better Titles and Thumbnails on YouTube
Crowdsourcing titles and thumbnails to be descriptive and not sensational
16,287 users
Malwarebytes Browser Guard
The fastest and safest web browsing experience. Secure your privacy by blocking trackers, blocking ads, and blocking malicious content.
530,191 users